body {
    font-family: Arial, sans-serif;
    background: #f5f6fa;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}
.container {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    text-align: center;
    min-width: 320px;
}
h2 {
    color: #333;
    margin-bottom: 16px;
}
form {
    margin-bottom: 20px;
}
input[type="text"], input[type="password"] {
    padding: 10px;
    margin: 8px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: 200px;
    font-size: 16px;
}
button {
    display: inline-block;
    padding: 10px 28px;
    margin: 10px 5px 0 0;
    background: #3498db;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s;
}
button:hover {
    background: #217dbb;
}
a {
    color: #3498db;
    text-decoration: none;
    margin-top: 10px;
    display: inline-block;
}
a:hover {
    text-decoration: underline;
}